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Submission #1008344

# Submission time Handle Problem Language Result Execution time Memory
1008344 2024-06-26T09:38:42 Z bachhoangxuan Toy Train (IOI17_train) C++17
100 / 100
 479 ms 1440 KB 
#include "train.h"
#include<bits/stdc++.h>
using namespace std;

std::vector<int> who_wins(vector<int> A, std::vector<int> R, vector<int> U, vector<int> V) {
	int n=(int)A.size(),m=(int)U.size();
    vector<vector<int>> edge(n);
    for(int i=0;i<m;i++) edge[V[i]].push_back(U[i]);
    vector<int> res(n,1);
    auto f = [&](vector<int> c,int x){
        queue<int> q;
        vector<int> d(n);
        for(int i=0;i<n;i++) for(int v:edge[i]) if(res[i] && res[v]) d[v]++;
        for(int i=0;i<n;i++)  if(res[i] && c[i]) q.push(i);
        while(!q.empty()){
            int u=q.front();q.pop();
            for(int v:edge[u]){
                if(c[v] || !res[v]) continue;
                d[v]--;
                if(A[v]==x || !d[v]){
                    c[v]=1;
                    q.push(v);
                }
            }
        }
        return c;
    };
    while(true){
        for(int i=0;i<n;i++) if(!res[i]) R[i]=0;
        vector<int> S=f(R,1);
        int ok=1;
        for(int i=0;i<n;i++){
            if(!res[i]) continue;
            ok&=S[i];S[i]^=1;
        }
        if(ok) break;
        S=f(S,0);ok=1;
        for(int i=0;i<n;i++){
            if(!res[i]) continue;
            ok&=S[i];
            if(S[i]) res[i]=0;
        }
        if(ok) break;
    }
	return res;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 856 KB Output is correct
2 Correct 3 ms 860 KB Output is correct
3 Correct 3 ms 860 KB Output is correct
4 Correct 5 ms 1116 KB Output is correct
5 Correct 3 ms 860 KB Output is correct
6 Correct 3 ms 860 KB Output is correct
7 Correct 2 ms 968 KB Output is correct
8 Correct 3 ms 856 KB Output is correct
9 Correct 3 ms 860 KB Output is correct
10 Correct 2 ms 860 KB Output is correct
11 Correct 2 ms 860 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 440 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 1372 KB Output is correct
2 Correct 169 ms 1368 KB Output is correct
3 Correct 237 ms 1372 KB Output is correct
4 Correct 4 ms 1372 KB Output is correct
5 Correct 5 ms 1372 KB Output is correct
6 Correct 6 ms 1216 KB Output is correct
7 Correct 4 ms 1372 KB Output is correct
8 Correct 4 ms 1372 KB Output is correct
9 Correct 4 ms 1348 KB Output is correct
10 Correct 4 ms 1372 KB Output is correct
11 Correct 4 ms 1372 KB Output is correct
12 Correct 4 ms 1372 KB Output is correct
13 Correct 4 ms 1372 KB Output is correct
14 Correct 4 ms 1372 KB Output is correct
15 Correct 4 ms 1372 KB Output is correct
16 Correct 4 ms 1372 KB Output is correct
17 Correct 4 ms 1432 KB Output is correct
18 Correct 275 ms 1116 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1116 KB Output is correct
2 Correct 4 ms 1116 KB Output is correct
3 Correct 4 ms 1372 KB Output is correct
4 Correct 4 ms 1352 KB Output is correct
5 Correct 4 ms 1372 KB Output is correct
6 Correct 5 ms 1368 KB Output is correct
7 Correct 5 ms 1368 KB Output is correct
8 Correct 4 ms 1372 KB Output is correct
9 Correct 4 ms 1168 KB Output is correct
10 Correct 4 ms 1372 KB Output is correct
11 Correct 4 ms 1372 KB Output is correct
12 Correct 4 ms 1252 KB Output is correct
13 Correct 5 ms 1372 KB Output is correct
14 Correct 4 ms 1368 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1372 KB Output is correct
2 Correct 4 ms 1372 KB Output is correct
3 Correct 5 ms 1440 KB Output is correct
4 Correct 4 ms 1096 KB Output is correct
5 Correct 1 ms 440 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 3 ms 856 KB Output is correct
8 Correct 3 ms 992 KB Output is correct
9 Correct 3 ms 860 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 3 ms 936 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 856 KB Output is correct
2 Correct 3 ms 860 KB Output is correct
3 Correct 3 ms 860 KB Output is correct
4 Correct 5 ms 1116 KB Output is correct
5 Correct 3 ms 860 KB Output is correct
6 Correct 3 ms 860 KB Output is correct
7 Correct 2 ms 968 KB Output is correct
8 Correct 3 ms 856 KB Output is correct
9 Correct 3 ms 860 KB Output is correct
10 Correct 2 ms 860 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 83 ms 1372 KB Output is correct
33 Correct 169 ms 1368 KB Output is correct
34 Correct 237 ms 1372 KB Output is correct
35 Correct 4 ms 1372 KB Output is correct
36 Correct 5 ms 1372 KB Output is correct
37 Correct 6 ms 1216 KB Output is correct
38 Correct 4 ms 1372 KB Output is correct
39 Correct 4 ms 1372 KB Output is correct
40 Correct 4 ms 1348 KB Output is correct
41 Correct 4 ms 1372 KB Output is correct
42 Correct 4 ms 1372 KB Output is correct
43 Correct 4 ms 1372 KB Output is correct
44 Correct 4 ms 1372 KB Output is correct
45 Correct 4 ms 1372 KB Output is correct
46 Correct 4 ms 1372 KB Output is correct
47 Correct 4 ms 1372 KB Output is correct
48 Correct 4 ms 1432 KB Output is correct
49 Correct 275 ms 1116 KB Output is correct
50 Correct 4 ms 1116 KB Output is correct
51 Correct 4 ms 1116 KB Output is correct
52 Correct 4 ms 1372 KB Output is correct
53 Correct 4 ms 1352 KB Output is correct
54 Correct 4 ms 1372 KB Output is correct
55 Correct 5 ms 1368 KB Output is correct
56 Correct 5 ms 1368 KB Output is correct
57 Correct 4 ms 1372 KB Output is correct
58 Correct 4 ms 1168 KB Output is correct
59 Correct 4 ms 1372 KB Output is correct
60 Correct 4 ms 1372 KB Output is correct
61 Correct 4 ms 1252 KB Output is correct
62 Correct 5 ms 1372 KB Output is correct
63 Correct 4 ms 1368 KB Output is correct
64 Correct 5 ms 1372 KB Output is correct
65 Correct 4 ms 1372 KB Output is correct
66 Correct 5 ms 1440 KB Output is correct
67 Correct 4 ms 1096 KB Output is correct
68 Correct 1 ms 440 KB Output is correct
69 Correct 2 ms 856 KB Output is correct
70 Correct 3 ms 856 KB Output is correct
71 Correct 3 ms 992 KB Output is correct
72 Correct 3 ms 860 KB Output is correct
73 Correct 1 ms 600 KB Output is correct
74 Correct 3 ms 936 KB Output is correct
75 Correct 109 ms 1372 KB Output is correct
76 Correct 202 ms 1372 KB Output is correct
77 Correct 268 ms 1368 KB Output is correct
78 Correct 279 ms 1368 KB Output is correct
79 Correct 259 ms 1440 KB Output is correct
80 Correct 5 ms 1372 KB Output is correct
81 Correct 5 ms 1372 KB Output is correct
82 Correct 6 ms 1348 KB Output is correct
83 Correct 5 ms 1348 KB Output is correct
84 Correct 5 ms 1372 KB Output is correct
85 Correct 5 ms 1344 KB Output is correct
86 Correct 6 ms 1368 KB Output is correct
87 Correct 5 ms 1252 KB Output is correct
88 Correct 8 ms 1368 KB Output is correct
89 Correct 5 ms 1372 KB Output is correct
90 Correct 11 ms 1372 KB Output is correct
91 Correct 10 ms 1380 KB Output is correct
92 Correct 19 ms 1372 KB Output is correct
93 Correct 22 ms 1372 KB Output is correct
94 Correct 19 ms 1368 KB Output is correct
95 Correct 23 ms 1284 KB Output is correct
96 Correct 67 ms 1372 KB Output is correct
97 Correct 313 ms 1424 KB Output is correct
98 Correct 447 ms 1396 KB Output is correct
99 Correct 479 ms 1384 KB Output is correct
100 Correct 290 ms 1116 KB Output is correct